SCI

In 2009, an Air France flight going missing and investigators discover this tragedy could happen again. After a huge area of Siberian forest is destroyed, investigators race to find the culprit. New evidence might finally solve this century-old mystery.

After five planes vanish in the Bermuda Triangle, new science suggests a strange geological force is responsible. Today, satellites are revealing lost tribes living in the Amazon jungle, but some civilizations remain missing, stumping experts.

The Roanoke colony vanished without a trace, and centuries later, it remains one of history's greatest unsolved mysteries. But new evidence might at last reveal its fate. After a man is swallowed by the earth, experts wonder if a sinkhole is to blame.

New technology reveals lost cities in inhospitable jungle, and researchers wonder if the mythical city of El Dorado could be the next discovery. After a crystal is found on a shipwreck, experts believe it could prove how the Vikings to discovered America.

New technology reveals lost cities in inhospitable jungles, and researchers wonder if the mythical city of El Dorado could be the among them. After a crystal is found on a shipwreck, experts believe it could prove how the Vikings to discovered America.

Atlantis is one of the most famous disappearances of all time. After thousands of years, state-of-the-art technology might finally be able to crack this ancient mystery. And after nine hikers die in a gruesome cold case, new science provides a hot lead.